Plastic material and process of preparing such plastic material.



1 tion by addin TED JSTAWENT OFFICE.-

.. eramann wlnemunn, or NEW rank, n, Y.,nss1anon 'r'o rnn'oromaz eonnommxon, ormszrmes-nromnunson, new YORK; A co'nronarron on NEW roan.

' arm rnoc'nss or Panama-a soon rnns'rro MATERIAL.

1,t067,855.' spwm'flonormefiraent Patented July 22,1913. m armin 1 apiinmien mac-november 13, race. term 110.527,?

To all whom concern Y Be it'lmown that I, Fnnnmann Graham) WmoHMAnn a citizen of the Uni-ted States, residing at ew York city, countyand State of New York, have invented a Plastic Material and Process of PreparingSuch Plastic- Material, of; whichthe following is a speci- In prior-Patents, Nos. 883,995,dated April 7, 1908, and 932,527,dated-August 21, 1909, granted to me, I have described a plastic material and process for preparing said plastic material eonsistingof a combination of vegetable albumin and a solvent solution of animal casein. Inmyresent invention, I substitute for theanima caseirn rubber in someone of its commercial forms, and the combination of these two substances, after due manipulation as will be described, I may use alone or I may treat such combinathereto a partial condensation product 0 phenol and formaldehyde as described by Dr. L. H. Baekelandinhis English Patent No. 1921, dated January 28th, 1908, depending upon the character of the material that is to be produced.

To carry my invention into efiect, I proceed as follows:

Example 1: I take parts of rubber in any one of its"commercial forms. This I manipulate as is usual in the rubber industry, to reduce it to the form of sheets. During the reduction, or subsequently, as is most convenient, I apply to the surface of the sheets 50' paits of the finely powdered vegetable albumin known in the art as vegetable'ivory (from vegetable ivory nut) or corozo and continue t e manipulation until the materials are thoroughly incorporated. The material is now in a plastic or mold able form for commercial'use.

Example 2: I take 50 parts of ubber in any one otiitscommercial forms a d add 50 parts of core-a0 as in {Example 1. Simultaneou'sly with the introduction Qt -"this vegetable.v albumin I may add sulfur, antimony,

lithopone, cellulose, whiting, rouge or any of the materials, 'gommonly em loyed in the manufacture of rubber goods, either as color- It) mmaterial or material which permits vulcaniing material, softening material, loading nation." this form the material is com- ;mereially useful for molding or other me- F'hanical manipulation.

of phenol and formaldehyde, now commonly known in the industry as bakelite The mixe materials are then heated and subjected to a force as for instance, pressure, to

prevent "disassociation of the condensation product and to reduce the compound to its final form. In its final 'form the compound is a hard insoluble product.

I wishitunderstood that I do not limit myself in any wise to the methods of mixing the materials. In place of rolling the rubber into sheets, I may effect the incorporation in any suitable milltor I may make partial solution of the rubber, for instance in nitrobenzol, and after first driving off, by

slow heating, the nitrobenzol or other rub- 1 her solvent, incorporate the rubber and loading materials or the condensation product of phenol and formaldehyde, and then subject the materials to temperature and other physical force necessary to complete the condensation product without dissociation of said product. v

Generally, I wish to have it understood that I believe .I am.the fi-rst to suggestthe employment of a vegetable protein as a loading material for rubber, considered alone, or in connection with a binder having the general characteristics of a condensation product of phenol and formaldehyde.

In my application Ser. No. 541,3361Ihave claimed the process of compounding a vege table albumin with rubber and with a product of reaction of phenol and formaldehyde while the claims ofthe' present application are more specific and are drawn to the veges table albumin known as vegetable ivory or corozo.

' While I am not in a position atthe present moment tomake a positive statement,

owingto the fact that the subject is one of great complication, theexperiments which I havemade lead meto'believe that there is not' only chemical combination between the condensation product. of .phenol and for: maldehyde and the vegetable'ivoryybut also with the rubber, whereby a'compound is formed'which is entirely new and which has not heretofore existed either in nature or as an artificial product. In other "words, Iv

wish to make it clear that I consider the product as not being a mere mechanical inproduct. I wish it understood thatI may use. most materials known in the rubber in dustry, for instance, petrolatum, wood oil, glycerin, Vaseline, siccative oils, asphaltum, wanes, solutions of celluloids, gums, resins, or other materials to impart an elastic or semi-elastic character to the final product.

Having thus described my invention, what I claim is:

1. A new articleof manufacture comprising vegetable ivory, rubber and a product of reaction of phenol and formaldehyde.

2. A process of forming a new product which consists in subjecting vegetable ivory and rubber to the action of a partial product of reaction of phenol and formaldehyde and rubber to the action of a partial product of reaction of phenol and formaldehyde and heating the same under pressure to form the desired body.

4:. A new article of manufacture comprising rubber and finely divided vegetable ivory.

5. A new plastic composition comprising rubber and finely divided vegetable ivory, the vegetable ivory being present in an amount not less than the amount of rubber present.

In testimony whereof, I afiix my signature, in the presence of two witnesses.

FERDINAND GERHARD WIECHMANN. lNitnesses:v

W. A. TowNER, Jr.,

ELIZABETH BARNETT. 

